de Oliveira, N.R.M. and Kennedy, J.P. 1992. Pattern of change in wool production from corriedale breeding ewes varying in age composition in Rio Grande do Sul, Brazil. Pesquisa Agropecuaria Brasileira. 27, 10 (Oct. 1992), 1443–1451. DOI:https://doi.org/10.1590/S1678-3921.pab1992.v27.3790.